Boiler-flue-cleaner system.



F.- W- UNAKER.

. BOILER FLUE CLEANER SYSTEM.

APPLICATION mm MAR. 8. 1915.

1,144,553" Patented June 29, 1915.

I rminniucx Wnll Z-I NAkER, or minors, soo'r cnmnnnca, or rr'rarsnuns, .non onmaw Tolal l whom may concern." 1

Be it known that I, FREDERICK LIN*-' AKER, a subject of the King ofEnglan'd,

residing at Dubois, in the county of Clearfield and State of Pennsylvania, have .111-

vented certain new anduseful Improve-- ments in Boiler-Flue-Cleaner Systems of which the following is a specification.

I outlet. or outlets for projecting a; jet or jets- This invention relates to boiler flue cleaner systems, of the type 'employing'a fluid-distributing pipe having a noz'zlejor'nozzles or or stream or streams of cleaning fluid among the tubes of a bollerto-removesoot there from, the jetor jets or stream or streams of fluid being directed'al'ong 'radiallines' or paths to adapt itto'cover agrea't' tube-surface. area, and to project-the cleaning fluid in planes parallel or approximately parallel with the inclined or obliquely arranged tubes. m I

The present invention" is especially designed for use in connection'with boilers of the Stirling type in which banks of parallel inclined boilertubes are employed 'and 'so,

disposed within the-boilersetting as; to5pre-"- sent inclined tube surfaces 7 to the action pr the cleaning fluid.- In thisparti'eulartype of-boiler, any

the cleaning of the middle-orupper portionsof the tubes may be so .disposedas-E'shewi'r' in my companion applicationfierial 1N0; 12,7 92,

"employ a ai ttibi1ti1ig Pipe f diameter to fobtainiaprojectio p fluid throughout the length of the. bank of- 40,:tubes, and o lower] portions goi'the tubes injthe bank;- I Si nce- .boilers of zrthistype i-as constructed have 1 no 'tage mayrbef taken for shieldingand pro-- tain in this type'of'boile with relation to from the, destructive heat vamullet.{fifth Chamber baflies adjacent the lower? ends of ljahe bank "orbanksof tubes ofwhich advantectingthe distributing pipe or. pipes .from

Ijthe intenseheatat this point, it is necessary. to provide protecting means for the pipe or :50. as well as to -providemeans whereby the pipe or pipes-maybe supported and re:

volved in their supports, an to accomplish this in an efiicient, simple and practical manrefinance-stunner, srs'rnm'.

V Speciiicationpf fitters- Patent; i" Application flledMarch 8,'1915 Serial No. 12,793.

, Inthe-drawings, Figure 1 "boiler-setting and-bank of tubes, latter. This, pipefis mounted for rotation,

PENNSYLVANIA, essrenoa ro THE .VULCAN or DUBOIS, PENNSYLVANIA, a conroae- 1 Patented June29, 1915.

. ner the main object of the presentinvenvention in detail, reference will be had to the]. v

accompanying drawings showing practical embodiments of the invention without eonfining myself to' the specificconstructlons shown and later described.

is. a vertical secti'onal view of a boilerlof the Stirling-type showing one former adaptation of my nvention. Fig. 2 is a fragmentary view insimilar sectlon showing another adaptation of the nvention.

tubes, shpwing one form of support for the distributing pipe, and, Fig. 4 is a similar view showing another form of. support. I

Fig. 3 is-an enlarged detailside elevation of a portion of the boiler A- Stirling-boiler of the type here shown" has three inclined banksof tubes A,. B and 1 .Q ,"which atltheir upper ends connect respecltiv'ely,

with'the steam-drums D, E, 'andF, and-at'their lower ends with the-water drum ,Gr'.=- Thebank A'of tubes is directly exposed totheextreme heat of the furnace chamber H,'and-isparticularly prone to a rapid accumulation .of'soot, the products of f tion .being required to pass around the upper v Y --en'd of' -therbafflel thatlies directly back of 0 ejP, iA g bank-of tubes A. Any permanently placedfluid distributing pipe placed below bafiie I withoutprotection from the extreme .,heat-will soon burn out, it being understood "that the cleaning agent'is a fluid i'n'the naiture' of steam or air and the pipe being normally empty. To prevent this, I provide, in the construction shown in Fig. 1,"a short baflie 10 extending from the. drum G at its, lower end upwardly along the bank of tubes for some distance, sufficiently far to provide fa heatprotected zone 11 between the bafiie and the baffle I, said baflie 10' bei'ng'located at or near the under row'of tubes oi the bank. In this protected zone 1 1,1 place combus a fluid distributing pipe 12,-usually' provided .with a plurality of jets or "nozzles 14,1118

pipe being arranged transverse1y"6f the among the any suitable means for rotating the same being employed, and, aswill be understood,

' is connected to a suitable feed pipe (not shown) for supplying same with cleaning fluid.

A convenient and practical mode of supporting the pipe for rotation, in the forms shown in Figsrl and 3, is a. clamp 15 clamped onto one of the tubes of the bank and provided at its free end with a curved seat or saddle 16 in which the pipe is received, as many of these supports being provided transversely through the bank as may be necessary to effectually support the P V g i 1 Inthe form shown in Figs. 2 and 4:, in lieu of the short ballle 10, I build an extension or baffle 17 directly upon top of the bridge wall 18 which extension or baflie 1s extended up near the lowermost row of tubes of the bank A and thus forms in back thereof, a protected zone 11 between the bafiies 17 and -I, in the same manner that such azone is formed by the baflies 10 and I.. In this zone, I place the distributing pipe 12 of the same form as above described and which is rotatable. yenient and practical means for support- A coning the pipe in this construction is by brackets 19 on top of the bridge wall 18,

- although other forms of supports may be used if desired.

' By the constructions described, it will be observed that in each of them I have pro- Vided a protected zone in which the fluid distributing pipe is located and wherein it is fully protected from the extreme heat of the furnace in proximity to which the distributing pipe is located, the pipe being protected from the flame of the fire coming in direct contact therewith, and consequently wholly protected from the damaging efiects of such flame.

t I claim as new is L... or: a boiler tube cleaner system, the

combination with an inclined bank of tubes,

and a relatively long bafile in back of said lower end of the bank of tubes spaced from the longer baflie to form a heat protected zone between the baiiles, and a fluid dis- .tributing pipe rotatably-mounted in said heat protected zone for projecting fluid onto said tubes for cleaning the same. I

2; In a boiler tube cleaner system, the combination with an inclined bank of tubes and a relatively long baflle in back of said tubes, of a relatively short baflle at the lower end of the bank spaced from the longer baifie to form a heat protected zone, pipe supporting means within said zone, and a fluid distributing pipe rotatively supported in said pipe supporting means.

3. Ina boiler tube cleaner system, the

combination with an inclined bank of boiler tubes, of a relatively short battle at the lower end of the bank extending upwardly directlv in back of the furnace chamber of the boiler'to form a protected zone for the lower ends of the tubes that lie in back of said bafile, and a fluid distributing pipe located in said zone and provided with nozzles for projecting cleaning fluid onto the. lower portions of the tubes of said bank for tubes, of a relatively short baiiie at the 

